1925, Overnight Air Mail First Trip Connecting New York to Chicago, from Post Office Department Railway Mail Service, July 1, on manila cover with edge faults, franked with 2¢ Washington & 8¢ green, C4 (Image)

Est. 35

1925/1957, Lot of 10 different covers, mainly mid-1930's, all but one addressed, incl C12, 5¢ violet, Welcome to the Autogiro, C19, 6¢ orange, 1st Day of 6¢ rate, two First Army Airmail Flights, three diff 3¢ Byrd covers, etc.

Est. 50

1927, 11 different first flights, from Cleveland, NY, Washington, Chicago, San Francisco, Key West, Indianapolis, Cincinnati, Fort Worth, etc (Image)

Est. 40

1931, Lot of 29 covers, 24 are first flights, balance related dedication, air meet, etc

Est. 50

May 6, 1937, Brooklyn, NY, clean cover Commemorating the 'Doomed' disastrous explosion and destruction by fire of the German Zeppelin "Hindenburg", cachet in red of exploding Zeppelin and portrait of Capt. Ernest Lehmann, mixed franking of U.S. #682, 2¢ carmine and Germany 8pf orange, 75pf green, cover is unaddr, with red Departing Lakehurst, NJ h/s added on front, and three add'l h/s added on reverse (Image)

Est. 40

1938, Airmail cover from St Petersburg, FL, to Tientsin, China, blue & black illus of St Pete, franked with 20¢ green C21 & 50¢ carmine C22, (Image)

Est. 40

THE ROSICRUCIAN ORDER, illus wings, San Lose, Jul 5 1944, Air Mail cover franked with 50¢ Taft single, to Auckland, New Zealand (Image)

Est. 30

1959, two unremarkable cover marking the Inauguration of AM-9 Service from Miami to Hilo, Hawaii, first addr to P(erry) C, Nahl, airmail specialist, one of only 24 known (Image)

Est. 80